File: upb.lua

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--[[--------------------------------------------------------------------------

Protocol Buffers - Google's data interchange format
Copyright 2023 Google LLC.  All rights reserved.

Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd

--]]--------------------------------------------------------------------------

local upb = require("lupb")

upb.generated_pool = upb.DefPool()

local module_metatable = {
  __index = function(t, k)
    local package = t._filedef:package()
    if package then
      k = package .. "." .. k
    end
    local pool = upb.generated_pool
    local def = pool:lookup_msg(k) or pool:lookup_enum(k)
    local v = nil
    if def and def:file():name() == t._filedef:name() then
      v = def
      t[k] = v
    end
    return v
  end
}

function upb._generated_module(desc_string)
  local file = upb.generated_pool:add_file(desc_string)
  local module = {_filedef = file}
  setmetatable(module, module_metatable)
  return module
end

return upb